Résultats de la recherche

1. Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan

   and difficulties of in situ observations, life cycle with their spatial and temporal distribution is ... yet to be fully understood. Especially in early life stage, the process of successful egg/larval ... more than 10 years unique satellite product data and ocean model output data. This work examines not ...

   Meeting Document : WG-SAM-2019/20 : Auteur(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii

2. Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets

   scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ... biomass in the following year. Similar recruitment failure in the same years is evident in krill ... sampling the same overall krill population. Greatest similarity results from comparing net samples with ... samples from late summer (March). From the 7-year predator time-series, within-year variation was greatest ...

   Meeting Document : WS-AREA 48-98/15 : Auteur(s): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)

3. Acoustic estimates of krill abundance at South Georgia, 1981–1998

   north-eastern and north-western ends of South Georgia. In four of these years biomass was higher to the ... fluctuated widely from year to year over this time, ranging from?2 to? 150 gm-2 (wet weight). The 1982, 1991 ... of the years between 1990 and 1998 it was possible to calculate separate biomass estimates for the ...

   Meeting Document : WS-AREA 48-98/9 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)

4. The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)

   extent Antarctic fish stocks recover from exploitation and how natural causes may add to man-made ... caused a number of years of very low recruitment around Elephant Island and the lower South Shetland ...

   Meeting Document : WG-FSA-12/20 : Auteur(s): K.-H. Kock (Germany) and C.D. Jones (USA)

5. Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988

   Abstract:  Naganobu et al. (1999) had assessed variability in krill recruitment and density with ... generally observed for around 3 years except 6 years between 1958 and 1964. Author(s):  M. Naganobu and K ... from 1952 to 1988. A time series of 3-month running mean suggested considerable seasonal variability of ... . A low DPOI less than 10 hPa appeared in 1967 and 1980. Intervals between the years of low DPOI were ...

   Meeting Document : WG-EMM-02/44 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)

6. Pup production and distribution of breeding Antarctic fur seals (Arctocephalus gazella) at South Georgia

   at the breeding grounds during the pupping period, together with corrections for the likelihood of a ... sites were used to estimate the pup production of the population had 1990/91 been a typical year. Based ... ) if it had been an average year. The annual increase from 1976/17 to 1990/91 was 9.8% which shows that ... in the 1950s and 1960s. Increased population size has led to an expansion of the breeding range at ...

   Meeting Document : WG-CEMP-92/39 : Auteur(s): I.L. Boyd (United Kingdom)

7. ANTARCTIC PENINSULA DECADAL WINTER TEMPERATURE ANOMALIES AND ANTARCTIC KRILL VARIABILITY IN THE SOUTH ATLANTIC REGION: PRELIMINARY RESULTS

   the oscillations with 3-8 year periods and a decadal oscillation with a period of about 16 years ... significantly to 0.4 when applying 1-year data shift (krill density after anomalies occurrence). The 3-8 year ... . Preliminary analysis of Antarctic krill density variations shows about 8-year variability as well. Correlation ...

   Meeting Document : WG-EMM-11/41 : Auteur(s): G.P. Milinevsky, A.V. Grytsai and L.K. Pshenichnov (Ukraine)

8. Preliminary assessment of Patagonian toothfish in Subarea 48.3

   terminal assessment year continues to be estimated at around 54% of virgin biomass, consistent with the ... outputs from the 2-fleet and 3-fleet assessments are very similar with the exception of the ... remains uncertain although there is some evidence of the progression of strong year-classes through the ... CCAMLR harvest control rule. The 3-fleet assessment model provides slightly improved fits to CPUE data ...

   Meeting Document : WG-FSA-13/30 : Auteur(s): R. Scott (United Kingdom)

9. Changing status of three notothenioid fish at the South Shetland Islands (1983–2016) after impacts of the 1970–80s commercial fishery

   Abstract:  Owing to commercial fishing during the late 1970s/early 1980s, targeted notothenioid ... Potter Cove, King George Islands/ Isla 25 de Mayo, in a 33-year effort to monitor recovery. N. rossii and ... started in 1983. Our inshore results were consistent with those from offshore bottom trawl sampling in ... with trends reported in seabirds that feed on juveniles of these notothenioids: decrease in the areas ...

   Meeting Document : WG-FSA-17/P01 : Auteur(s): E. Barrera-Oro, E. Marschoff and D. Ainley

10. Scientific justification for a marine protected area designation around the Balleny Islands to protect ecosystem structure and function in the Ross Sea region, Antarctica: progress report

    can be aligned with both the CCAMLR ecosystem-wide conservation objectives and the values found in ... includes the only known habitat in the region for juvenile toothfish, and perhaps also for early ... against unpredictable and potentially negative ecosystem impacts, consistent with the conservation mandate ... marine science, consistent with the principles of the Antarctic Treaty. Author(s):  Delegation of New ...

    Meeting Document : SC-CAMLR-XXIV/BG/25 : Auteur(s): Delegation of New Zealand

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